/** 
  *	Define size independent data types and operations.
  *
  *   The following types must be supported by all platforms: 
  *
  *	UINT8  - Unsigned 8-bit Integer		INT8  - Signed 8-bit integer
  *	UINT16 - Unsigned 16-bit Integer	INT16 - Signed 16-bit integer
  *	UINT32 - Unsigned 32-bit Integer	INT32 - Signed 32-bit integer
  *	UINT64 - Unsigned 64-bit Integer	INT64 - Signed 64-bit integer
  *
  *
  *   The macro names for the artithmatic operations are composed as follows:
  *
  *   XXX_R_A_B, where XXX - 3 letter operation code (ADD, SUB, etc.)
  *					 R   - The type	of the result
  *					 A   - The type of operand 1
  *	         B   - The type of operand 2 (if binary operation)
  *																			   *
  *				     Each type is one of: U8,8,U16,16,U32,32,U64,64
  *
  */

#pragma once

#define PI								((float)3.141592654f)
#define M_PI							PI

#undef  INLINE
#define INLINE						static __inline

#define strcasecmp				stricmp

typedef unsigned char     UINT8;
typedef signed char       INT8;

typedef unsigned short    UINT16;
typedef signed short      INT16;

typedef unsigned int			UINT32;
typedef signed int				INT32;

typedef unsigned __int64  UINT64;
typedef signed __int64    INT64;


  /* Combine two 32-bit integers into a 64-bit integer */
#define COMBINE_64_32_32(A,B)     ((((UINT64)(A))<<32) | (UINT32)(B))
#define COMBINE_U64_U32_U32(A,B)  COMBINE_64_32_32(A,B)

  /* Return upper 32 bits of a 64-bit integer */
#define HI32_32_64(A)		  (((UINT64)(A)) >> 32)
#define HI32_U32_U64(A)		  HI32_32_64(A)

  /* Return lower 32 bits of a 64-bit integer */
#define LO32_32_64(A)		  ((A) & 0xffffffff)
#define LO32_U32_U64(A)		  LO32_32_64(A)

#define DIV_64_64_32(A,B)	  ((A)/(B))
#define DIV_U64_U64_U32(A,B)  ((A)/(UINT32)(B))

#define MOD_32_64_32(A,B)	  ((A)%(B))
#define MOD_U32_U64_U32(A,B)  ((A)%(UINT32)(B))

#define MUL_64_32_32(A,B)	  ((A)*(INT64)(B))
#define MUL_U64_U32_U32(A,B)  ((A)*(UINT64)(UINT32)(B))


/******************************************************************************
 * Union of UINT8, UINT16 and UINT32 in native endianess of the target
 * This is used to access bytes and words in a machine independent manner.
 * The upper bytes h2 and h3 normally contain zero (16 bit CPU cores)
 * thus PAIR.d can be used to pass arguments to the memory system
 * which expects 'int' really.
 ******************************************************************************/
typedef union PAIR {
	struct { UINT8 l,h,h2,h3; } b;
	struct { UINT16 l,h; } w;
	UINT32 d;
}	PAIR;
